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• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeOct 8th 2010

polished regular category somewhat and added a few things, for instance a Properties-section.

Also started and linked to a dedicated entry on regular logic.

• CommentRowNumber2.
• CommentAuthorTodd_Trimble
• CommentTimeJan 8th 2016

Added to regular category and exact category the statements that slices and co-slices of regular/exact categories are regular/exact (under Examples).

• CommentRowNumber3.
• CommentAuthorTodd_Trimble
• CommentTimeFeb 21st 2017

Added to regular category and exact category the statements that for a Lawvere theory $T$, the category of $T$-models in a regular/exact category is regular/exact (under Examples).

• CommentRowNumber4.
• CommentAuthorPeter Heinig
• CommentTimeJun 7th 2017
• (edited Jun 7th 2017)

Added two properties, and headings to regular category. Intend to describe an axiomitization result of Makkai concerning regular functors i in more detail on this page. Had to pause for the time being. Motivation is that I work on a non-axiomatizability proof concerning infinite (undirected simple) graphs, for which I am learning more categorical logic.

• CommentRowNumber5.
• CommentAuthorThomas Holder
• CommentTimeJun 8th 2017

I brushed up the reference and idea section a bit.

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